It may be that you don't want to display the login module with the login form on your website, but you do have a need for a login page for your contributors, publishers, editors and super administrators to easily access the front end of your site. 

All Joomla sites have the ability to reach a login page by adding ?option=com_users&view=login to the end of the domain name in the browser address bar. For example:

http://mysitename.com/index.php?option=com_users&view=login
or
http://mysitename.com/component/users/?view=login

This method proves difficult to remember and if you have multiple contributors, is not a reliable way for them to access the front end, as they will forget how to do it and be contacting you an a regular basis.

For obvious reasons, you don't want this login page to be part of your regular navigational menu system. You can create a separate menu, one that is not displayed in your navigation, that creates this login page. You can call it whatever you want, maybe not something so obvious as "Login Page". You can even change the settings on this individual page so that it is not indexed by the search engine web crawlers.

Set up a new menu for individual pages

login menu type

In Menu Manager you want to create a new menu other than Main Menu or any other menu that is displayed on your site with a Menu type Module. You can name this menu, Ghost Menu or Individual Pages, or whatever you will remember. You can use this menu for other individual pages that you may have for your site, such as Privacy Policy. These items will not be in the navigation menus, but you can link to them from articles and modules.

Open up this new menu and create a new Menu Item.  

Give the Menu Item a title that is logical, easy to remember, but not obvious. The alias for this Menu Item will be what your contributors need to remember or bookmark to access this login page. For this example, we will give it the title of Let Me In. This will automatically give it the alias of let-me-in

For the Menu Item Type, select Login Form under Users Manager.

In the Meta Data tab for this Menu Item, select No Index, No Follow for the options for Robots.

If your web site has an SSL certificate, your URL has the https:// protocol, you can choose Secure for the security settings. If your site doesn't have an SSL certificate, leave this alone.

Select Save & Close, unless you have other things to change for this menu item.

Open up the login page in a browser

Because you created this page with Menu Manager, the page exists on the site, just not in the displayed navigation.

Type in the URL for your site followed by a forward slash and the alias for this page. Using our example page:

http://myexamplesite.com/let-me-in

A web page with a front in login form in the content area will appear.

Send this URL out to your contributors for them to login to the front end of the site to add and edit content. They will be logged in the same way as if you had used the login form. Any settings you have set up, such as a redirect page, will still work. 

To logout of the front end, the contributor can simple return to this URL. A logout button will appear if they are logged in. Instruct them that it is important that they do logout when they are done with their edits. They will also be logged out of the front end if they close the browser window.